Regarding PCB layout of a crystal oscillator

[garvind25]

Hi,

I was planning to use a SG-8002JF crystal oscillator for my project. In the suggested layout of the device at page 2 of datasheet attached, they have mentioned a ‘resist’ layer. What is it pls and how is it realized in PCB? Also, can it be avoided?

Thanks and Regards,

Arvind Gupta

View attachment SG-8002JF-MPT_EPSON.pdf

 

[betwixt]

It refers to normal PCB resist coating over the copper trace. Part of the underside of that component is exposed to internal connections and the recommended PCB layout uses a track underneath it. The resist (blue/green/red or whatever) is the normal PCB coating, in this case used as an insulating layer between the component and track beneath it.

Brian.

 

[FvM]

The layout suggestions are for industrially manufactured PCB, solder resist is required for reflow solder process. There's no point to avoid it because a PCB will be hardly made without solder resist.

If you are asking about self elaborated PCB, you can surely omit it.